In a previous post, I discussed the analysis of an initially robust-looking combination of S-boxes, then suggested two potential extensions of the algorithm to examine.
Crypto / security | alaric | 
Sun 24th Sep 2006 12:55 am | 
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Today, we went down to Bristol to visit Costco and stock up on baby supplies, and to have an outing in the city centre itself.
It was a lovely place to explore, but I was a bit sad - I remember visiting there about 15 years ago and there being a road with loads of big academic bookshops on near the University; but when we went there today, there was just a single small Blackwells. The others had been replaced with clothes shops, shoe shops, and hairdressers, it seemed.
Still, at the end of the day, we headed back up the M5 with Jean asleep. As we approached junction 11A, I commented that we were nearly home - it was just about ten minutes from there. We took the junction, went along the A417 one junction to the A46, but at Crosshands Roundabout - the exit to continue up the A46 was coned off. "ROAD CLOSED - ACCIDENT".
Alaric, Jean, Sarah | alaric | Sat 23rd Sep 2006 10:49 pm | Comments (1)
Cryptanalysis is the science/art of analysing an encryption system's design to try and figure out how you'd break it.
If encryption systems were used properly, this would be very hard. After all, in that case, all you'd ever have access to was the design of the encryption system and a stream of intercepted encrypted messages.
However, in practice, it's possible to guess parts of the messages (perhaps most start with "Dear ..."), or even to occasionally steal a decrypted message and pair it up with its encrypted version, then study the relationships between them (known plaintext attacks). Or sneak a spy into the organisation being studied, and just ask them to send emails to the person at the other end of the encrypted link, in the middle of the night, at agreed times, so it's easy to spot the encrypted version of the message. Then you have a chosen plaintext attack, which is the most powerful kind.
Crypto / security | alaric | Fri 22nd Sep 2006 1:46 pm | Comments (2)
Some of our favourite sandwitches - thought it would be unfair not to share!
1) Fruity stilton rolls * sesame seed roll preferably the long 'finger' kind - crusty naturally. * roasted mediteranian vegetable humous * mango chutney * blue stilton cheese
Put spreed/butter on bread to taste. Then generously smear the humous on. Cut thickish slices of stilton - careful too thin and it crumbles! But beware stilton is a strong cheese! Probably best if you just put chunks on do not cover the entire surface. Then drizzel mango chutney - the runnier the better over the top. Options are do you have it as an open sani or as a closed roll? Its up to you
2) Avocado and Walnut Sandwitch * Bread of your choice. * Walnuts - preferable fresh * Avacardo (1/2 per person/sandwitch on average) - quiet wripe ones are best. * Salad cream
De-shell the walnuts and brake up into reasonable chunks. Spread/butter to taste. Peel, pitt and slice avacado and place on bread. Place walnuts on top and drizzel salad cream over. Best as a closed sandwitch!
3) Toasted Cheese Heavan For this you will need a flat bed toater - ie two hot plates that you close on the sandwitch - not the 'shell' patterned traditional sandwitch toaster. Flat bed toasters are the kind used for paninis.
Put spread or butter on bread to taste. Cut thin slices of cheese and arange on bread. Put on the onion, olive slices and sweet corn. Put other slice of bread on top - make sure the spread/butter sides of the bread are inside the sandwitch and not on the outside as with traditional toasties. Put in toaster until ready (this will depend on the toaster some experimentation maybe needed.).
4) Bread Pizza
Chop onions, peppers, and any meat things. Cut french stick into approprait sized pieces - 25 cm long is good. Slice each section longways to make two pizza bases out of each. Toast the crust side of the bread. Spread pasta suace on the non toasted side. Place topping on. Sprinkly grated cheese on liberall. Add a few small chunks of blue cheese to taste. Grill to perfection - eat making satisfied noises.
5) Olive Pannini Yummyness
Get/make paninnis with black olives inbedded in it - again this recipe calls for a flate bed toaster!
Make the dam paninni and put in toaster! Eat! Well after you've taken it out of the toaster of course!
6) Cheese sarni ideas!
Recipies | sarah | Thu 21st Sep 2006 9:44 pm | Comments (1)
I have finally conceided to peopled wishes - here is my Amazon wishlist - its also links at the side of the blog.
Its filled with lots of yummy goodness to keep Sarah Mucho happy 🙂
Sarah | sarah | Wed 20th Sep 2006 10:25 am | Comments (2)
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